Getting started with md0.io is easy. You don't even need to create an account.
1. Open the Editor
Navigate to the Editor to start writing immediately. You'll see a split-pane view with your markdown on the left and the preview on the right.
2. Write Some Markdown
Try typing the following:
# Hello, World!
This is my first **md0.io** document.
3. Export Your Work
Click the Export button in the toolbar to save your document as a Markdown file, HTML, or PDF.